The position of a 50g oscillating mass is given with x (t) = (2.3 cm) cos 13 t, where t is in seconds.
1. Determine the period.
2. Determine the amplitude.
3. Determine the total energy.
4. Determine the maximum speed.
5. Determine the spring constant.
6. Determine the velocity at t = 0.40s
Only detailed explanations with correct answers (with relevant equations) will be awarded points.